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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Статьи

• Скачать
  Monolithic Buck Regulator Operates Down to 1.6V Input; Simplifies Design of 2-Cell NiCd/NiMH Supplies &mdash LT Journal
  PDF, 380 Кб, Файл опубликован: 1 сен 2005
  Выписка из документа

  DESIGN FEATURES Monolithic Buck Regulator Operates
  Down to 1.6V Input; Simplifies Design
  of 2-Cell NiCd/NiMH Supplies by Gregg Castellucci Features
  Soft Start
  To reduce inrush currents at startup, the LTC3409 offers a soft start
  function, which linearly ramps up
  the output voltage in about 1ms. For
  instance, the average output current
  required during soft start to charge a
  10ВµF output capacitor to 1.8V in 1ms
  is 18mA. The total output current is the
  sum of the output capacitor charging
  current and the current delivered to
  the load as VOUT ramps up. 80 3.1VIN 70 100 2.5VIN 60
  50
  40 10 30 10 10
  100
  LOAD CURRENT (mA) 40 1k R2
  133k 10 30 POWER LOSS AT 2.5VIN 10 0 VOUT = 1.5V 0.1 1 10
  100
  LOAD CURRENT (mA) 1k 1 Figure 2. Efficiency vs load current for
  the LTC3409 in pulse skip mode. Switching Frequency
  Synchronization …

Модельный ряд

Классификация производителя

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck

Варианты написания:

LTC3409EDDTRPBF, LTC3409EDD TRPBF